Common mistakes in French conjugation

Mastering French conjugation is never a simple exercise, whether for native speakers or learners. Among the common conjugation errors, confusion between the future and conditional tenses, hesitations regarding past participle agreement, and the incorrect use of the auxiliary verbs “avoir” and “être” are frequently observed. One sometimes hears “ils croivent” (they believe), or reads “j’ai été voir” (I went to see) instead of “je suis allé voir” (I went to see). These mistakes aren’t dramatic, but they persist, even after years. Whether writing an email or answering a question during an interview, distinguishing between “je ferai” (I will do) and “je ferais” (I would do), or knowing whether to write “il a mangé” (he ate) or “il est mangé” (he is eaten), can quickly become a headache. The pitfalls of French grammar are numerous, and the fle.re platform observes daily that even the most diligent users fall into these traps. In short, no need to panic: everyone goes through it at least once. https://www.youtube.com/watch?v=HxECpu8jGcI Why do we often make mistakes with compound past tenses?The conjugation of compound tenses in French frustrates many learners, and sometimes even those who have spoken French since birth. Agreement errors with the auxiliary verb *avoir* are legion, especially with the past participle. We sometimes hear or read: “Les emails que j’ai envoyé,” when in reality it should be written: “Les emails que j’ai envoyés.” The trick is that the past participle used with *avoir* is… The past participle never agrees, unless the direct object precedes the verb. Try it out, and you’ll see how much it can change the meaning of the message. Another recurring pitfall is the confusion between the auxiliary verbs *être* and *avoir*, particularly noticeable when describing movement or states, such as “Je suis allé au marché” (I went to the market) versus “J’ai été voir un film” (I went to see a film). It’s a small detail, but one that often betrays spoken habits or the influence of certain regions or contexts. Mistakes are also made when using *avoir eu* or *avoir été* instead of *être allé*—”J’ai été à Paris” seems innocuous but deviates from formal usage. These confusions often arise from familiar patterns of expression or because, in spoken language, everything is often rushed. This explains the persistence of these errors in many written documents, including professional emails and even administrative documents. To overcome them, nothing beats regular practice. French audio dictations are an effective tool for memorizing the rules, as they force you to think about each ending.Never agree the past participle with *avoir* unless the direct object precedes it.*Être* is always used for verbs of movement and reflexive verbs. Avoid the systematic use of the auxiliary verb *avoir*, especially in expressions of movement.

Check if a direct object placed before the past participle requires agreement. Reading aloud helps to identify inconsistencies often overlooked in writing. What confusions between the future and the conditional tenses must be absolutely avoided? Mixing the simple future and the present conditional is one of the mistakes that irritates teachers… and often confuses learners. It’s a detail of conjugation that, nevertheless, completely changes the meaning of a sentence.

is a certainty, a plan, a future action without conditions.

“I would do,” on the other hand, introduces a possibility: the action is based on a hypothesis. In spoken French, the nuance is subtle, but in writing, the difference is obvious, and it’s a matter of credibility: sending “I would send you the quote tomorrow” to a client suggests uncertainty, whereas “I will send you the quote tomorrow” inspires confidence. This kind of confusion often arises because the endings -ai (future tense) and -ais (conditional tense) sound similar. Learners who are used to writing quickly, especially in text messages or professional emails, easily make this careless mistake—it happens to me too when I write too fast! To stay on top of things, simply imagine the situation: is it a promise (future tense) or a supposition (conditional tense)? Taking the time to rephrase the sentence can be enough to dispel the doubt. Future tense form Conditional form Correct context I will come I would comePromise or plan / Possibility or hypothesis We will answer We would answer Firm commitment / Conditional possibility You will take

You would take Instruction or certainty / Politeness, concession How to avoid mistakes with irregular verbs in the present tense? How to avoid mistakes with irregular verbs in the present tense? It is often irregular verbs that trip up even confident speakers. Who hasn’t hesitated between “vous faites” and “vous faîtes”? Automatic responses are deceptive, and the French ear is sometimes fooled by homophones or linguistic quirks, especially with common verbs such as “dire” (to say) or “faire” (to do). In writing, this confusion is a glaring flaw. The verb “faire” (to do/make) is given by: je fais, tu fais, il fait, nous faisons, vous faites, ils font – without accents, circumflexes, or diacritics anywhere. Yet, even in professional reports or on reputable blogs, this error resurfaces. Another difficulty: verbs, sometimes perceived as “simple,” can be tricky, such as the first-person singular form of “aller” (to go). We’ve all read or heard “j’alle” instead of “je vais” (I go), especially when imitating children, but this kind of mistake also creeps into relaxed conversations or under the pressure of stress when speaking in public. The same problem arises with “tenir” (to hold), “venir” (to come), or “voir” (to see), whose third-person present-tense forms vary enough to make it easy to lose track, particularly when tired or emotional. To remedy this, nothing beats active repetition, perhaps through French audio dictations.

• I also like to fill in the blanks in a few sentences, gleaned from discussions or reading, to make sure my reflexes stay sharp. And believing you’re immune after school is an illusion: French changes, evolves, and mistakes adapt too… What mistakes persist with passive and reflexive voice agreement?
• Agreement in the passive voice
• and with
• reflexive verbs
• is among the most common blunders among French speakers. We’ve all hesitated over “ils se sont parlé” or “elle s’est lavée les mains.” Yet, the rule is clear: for reflexive verbs without a direct object preceding the verb, the past participle agrees with the subject. Example: “Ils se sont couchés tôt.” For reflexive verbs followed by a postposed direct object, there is no agreement, as in “Ils se sont parlé.” It’s quite simple, but in practice, the two cases are often confused, especially in writing.

In the passive voice, the past participle always agrees with the subject. We write “Les invitations ont été envoyés” (The invitations were sent) and not “Les invitations ont été envoyé” (The invitations were sent), even if the spoken form might give the impression of an identical ending to the inattentive ear. Personal anecdote: I was once corrected for leaving a stray or missing “s” in a presentation for a client. Now, I force myself to systematically reread every passive or reflexive sentence. This kind of check can completely change the impression someone has on your work, even on LinkedIn!

How to recognize and correct infinitive and past participle errors? Making a mistake between a verb in the infinitive and a past participle happens often, even to experienced writers. A typical scenario: you read quickly, you write even faster, and you blurt out “Je l’ai fait réparation” (I had it repaired) instead of “Je l’ai fais réparation” (I had it repaired), or worse, the opposite mistake. The clue? The infinitive is used after verbs of perception or movement (to see, to look, to hear), while the past participle agrees, if necessary, but only after certain auxiliary verbs. This distinction is ingrained in usage, but becomes obvious upon careful proofreading – and on this point, automatic spell checkers regularly miss the error. The best practices? Read aloud, mentally rephrase the sentence, or submit your text to an automated dictation tool. The past participle after “avoir” agrees with the direct object preceding the verb.The infinitive is used with modal or perception verbs.

See also: Public Service (France). “Les principales règles d’accord du participle passé” (The Main Rules of Agreement of the Past Participle). Service-public.fr, November 30, 2022. Accessed June 23, 2024.

See also: French Academy. “Sensé, sentent” (sensible, supposed). French Academy, n.d. Accessed June 23, 2024.

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Anthony FLE